UART communication via infrared communication(wireless) in LPC 55s16 Microntroller

Arularasan — Tue, 23 May 2023 03:59:44 GMT

HI I am Using USART PROTOCOL.

Is it possible to transfer data from TX to RX via infrared communication(wireless) ?

Re: UART communication via infrared communication(wireless) in LPC 55s16 Microntroller

xiangjun_rong — Wed, 24 May 2023 05:22:07 GMT

Hi,

As you know that the Irda signal requires 38KHz carrier modulation with uart TX signal, I suppose that you can generate 38KHz carrier signal with CTimer or SCT/PWM whatever, use an AND gate to finish the modulation. For the Irda receiver, you have to remove the 38khz carrier signal, you can design a first order analog filter with AMP(analog amplifier), and connect the filtered signal from AMP to RX pin of uart.

The LPC55S16 has uart, CTimer and PLU module, the PLU can implement the AND logic to finish the modulation, but you have to use an external amplifier to implement the analog filter.

Hope it can help you

XiangJun Rong

LPC MicrocontrollersのトピックUART communication via infrared communication(wireless) in LPC 55s16 Microntroller

UART communication via infrared communication(wireless) in LPC 55s16 Microntroller

Re: UART communication via infrared communication(wireless) in LPC 55s16 Microntroller